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ALU flags
ALU Flags An ALU flag is a bit that is stored in a register and is used by an ALU to control the execution of an instruction. These flags are set or cleared...
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ALU Flags An ALU flag is a bit that is stored in a register and is used by an ALU to control the execution of an instruction. These flags are set or cleared...
ALU Flags
An ALU flag is a bit that is stored in a register and is used by an ALU to control the execution of an instruction. These flags are set or cleared by the ALU depending on the specific instruction being executed.
Examples:
Carry flag (CF): When a division operation is performed, the CF flag is set to 1 if the quotient is not zero and 0 otherwise. This flag is used to determine whether to perform a carry operation.
Overflow flag (OF): When an addition or subtraction operation is performed with two numbers of different data types, the OF flag is set to 1 if the result is out of the range of the data types being used. This flag is used to determine whether to handle the overflow condition.
Zero flag (ZF): When an ALU operation is performed with a zero operand, the ZF flag is set to 1 if the result is zero. This flag is used to determine whether the result is a zero value.
Sign flag (SF): When an ALU operation is performed with a signed operand, the SF flag is set to 1 if the result is negative and 0 otherwise. This flag is used to determine whether the result is negative